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KCET2014ChemistryThermodynamics (C)

( A(g) P(g)+Q(g)+R(g) ), follows first order kinetics with a half life of ( 69.3 ~s ) at ( 500^ C ). Starting from the gas 'A' enclosed in a container at ( 500^ C ) and at a pressure of ( 0.4 ~atm ), the total pressure of the system after ( 230 ~s ) will be

Options

  1. A( 1.32 ~atm )
  2. B( 1.12 ~atm )
  3. C( 1.15 ~atm )
  4. D( 1.22 ~atm )

Correct answer

B. ( 1.12 ~atm )

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